{"id":121904,"date":"2024-03-24T04:19:10","date_gmt":"2024-03-23T19:19:10","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%ae%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b6%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e5%88%b6%e5%be%a1%e3%81%ae%e4%bb%95%e7%b5%84\/"},"modified":"2024-03-27T11:45:36","modified_gmt":"2024-03-27T02:45:36","slug":"java%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%ae%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b6%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e5%88%b6%e5%be%a1%e3%81%ae%e4%bb%95%e7%b5%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%83%9e%e3%83%ab%e3%83%81%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%81%ae%e3%83%88%e3%83%a9%e3%83%b3%e3%82%b6%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e5%88%b6%e5%be%a1%e3%81%ae%e4%bb%95%e7%b5%84\/","title":{"rendered":"Java\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u4ed5\u7d44\u307f"},"content":{"rendered":"

Java\u306b\u304a\u3044\u3066\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff0e<\/p>\n

    \n
  1. synchronized\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u4fee\u98fe\u3057\u3001\u7279\u5b9a\u306e\u6642\u9593\u306b1\u3064\u306e\u30b9\u30ec\u30c3\u30c9\u3060\u3051\u304c\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u539f\u5b50\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n
    synchronized<\/span> (lock) {\r\n\/\/ \u4e8b\u52a1\u64cd\u4f5c\u4ee3\u7801<\/span>\r\n}\r\n<\/code><\/pre>\n
      \n
    1. Lock\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5229\u7528\uff1aLock\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306elock()\u3068unlock()\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u3066\u3001\u30b9\u30ec\u30c3\u30c9\u306e\u540c\u671f\u3092\u5b9f\u73fe\u3055\u305b\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u539f\u5b50\u6027\u3092\u62c5\u4fdd\u3059\u308b\u3002<\/li>\n<\/ol>\n
      Lock<\/span> lock<\/span> =<\/span> new<\/span> ReentrantLock<\/span>();\r\nlock.lock();\r\ntry<\/span> {\r\n\/\/ \u4e8b\u52a1\u64cd\u4f5c\u4ee3\u7801<\/span>\r\n} finally<\/span> {\r\nlock.unlock();\r\n}\r\n<\/code><\/pre>\n
        \n
      1. \u30ed\u30fc\u30ab\u30eb\u30b9\u30ec\u30c3\u30c9\u5909\u6570\u306e\u4f7f\u7528: \u30b9\u30ec\u30c3\u30c9\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306f\u5404\u30b9\u30ec\u30c3\u30c9\u3067\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u72b6\u614b\u3092\u6301\u3061\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8aad\u307f\u66f8\u304d\u3067\u304d\u308b\u3001\u30b9\u30ec\u30c3\u30c9\u30ec\u30d9\u30eb\u306e\u5909\u6570\u5206\u96e2\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n
        ThreadLocal<TransactionStatus> transactionStatus = new<\/span> ThreadLocal<\/span><>();\r\n\/\/ \u5f00\u542f\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(TransactionStatus.STARTED);\r\n\/\/ \u63d0\u4ea4\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(TransactionStatus.COMMITTED);\r\n\/\/ \u56de\u6eda\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(TransactionStatus.ROLLEDBACK);\r\n<\/code><\/pre>\n
          \n
        1. Atomic\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b: Atomic\u30af\u30e9\u30b9\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3092\u4fdd\u8a3c\u3059\u308b\u4e00\u9023\u306e\u539f\u5b50\u64cd\u4f5c\u30e1\u30bd\u30c3\u30c9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002Atomic\u30af\u30e9\u30b9\u306e\u539f\u5b50\u64cd\u4f5c\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u539f\u5b50\u6027\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n
          AtomicBoolean<\/span> transactionStatus<\/span> =<\/span> new<\/span> AtomicBoolean<\/span>(false<\/span>);\r\n\/\/ \u5f00\u542f\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(true<\/span>);\r\n\/\/ \u63d0\u4ea4\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(false<\/span>);\r\n\/\/ \u56de\u6eda\u4e8b\u52a1<\/span>\r\ntransactionStatus.set(false<\/span>);\r\n<\/code><\/pre>\n
          \u305f\u3060\u3057\u3001\u4e0a\u8a18\u306e\u65b9\u6cd5\u3067\u306f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u539f\u5b50\u6027\u3057\u304b\u4fdd\u3066\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3002\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u4e00\u8cab\u6027\u3068\u5206\u96e2\u6027\u3092\u4fdd\u3064\u306b\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084\u305d\u306e\u4ed6\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u304c\u63d0\u4f9b\u3059\u308b\u6a5f\u80fd\u304c\u5fc5\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
          Java\u306b\u304a\u3044\u3066\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff0e synchronized\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u4fee\u98fe\u3057\u3001\u7279\u5b9a\u306e\u6642\u9593\u306b1\u3064\u306e\u30b9\u30ec […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-121904","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u4ed5\u7d44\u307f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u4ed5\u7d44\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u4ed5\u7d44\u307f\" \/>\n<meta property=\"og:description\" content=\"Java\u306b\u304a\u3044\u3066\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff0e synchronized\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u5fc5\u8981\u306a\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u4fee\u98fe\u3057\u3001\u7279\u5b9a\u306e\u6642\u9593\u306b1\u3064\u306e\u30b9\u30ec […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u5236\u5fa1\u306e\u4ed5\u7d44\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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